In some of my projects I use OpenVZ to create containers.
One of the tools I use to create backup of running container is vzdump from proxmox.com.
Unfortunately rpm provided is older version and latest provided only as debian package.
As source is available I was able to create RPM package and created misc repo.
Here is how to use it
name=Misc Packages for Enterprise Linux 6 - $basearch
Current version is: